Why have astronomers placed telescopes in space?

Why is the primary mirror in a telescope curved?

The current in an oscillating LC circuit is zero at a particular moment. Which one of the following statements is true? A) The charge on the capacitor is equal to zero coulombs. B) Charge is moving through the inductor.

A tectonic force is pushing a tectonic plate toward the north. If a second force of equal magnitude were to be applied to the plate in an eastward direction, A. the plate would change speed but not direction. B.

Sociologists define culture as existing only of the fine arts True False

Which property of a sound wave indicates volume?

A refrigerator is a system. The energy input into the refrigerator system (in the form of electricity) is the same as the amount of energy output from the system. Which of the following best describes the energy output of the system?

A 1,120 kg car is travelling with a speed of 40 m/s. Find its energy.

3. Calculate the amount of current through a 45-watt light bulb that is connected to a 120-volt circuit in your home.

Are oranges called oranges because oranges are orange, or is orange called orange because oranges are orange?

An object at rest has no net force acting on it. a. True b. False